Re: [Xen-devel] [PATCH] tools/libxc: Set max_elem to zero in xc_lockprof_query_number()

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Wed, 2014-08-13 at 12:40 -0400, Boris Ostrovsky wrote:
> If max_elem is not zero then hypervisor's spinlock_profile_ucopy_elem()
> will attempt to copy profile data into user's data buffer. Since this
> buffer is explicitly set to (the equivalent of) NULL the copy will fail,
> causing xenlockprof to fail as well.
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

I would have expected DECLARE_SYSCTL to zero the struct, but anyway:
Acked + applied, thanks (and sorry for the delay).



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